Datos del Documento

Por favor, use este identificador para citar o enlazar este documento: https://ria.asturias.es/RIA/handle/123456789/14664
Título : On the role of continuing currents in lightning-induced fire ignition
Autor : Pérez-Invernón, Francisco J.
Moris, Jose V.
Gordillo-Vázquez, Francisco J.
Füllekrug, Martin
Pezzatti, Gianni Boris
Conedera, Marco
Lapierre, Jeff
Huntrieser, Heidi
Palabras clave : Ciencia de rayos
Incendios forestales
Fecha de publicación : 27-oct-2023
Citación : Pérez-Invernón FJ, Moris JV, Gordillo-Vázquez FJ, Füllekrug M, Pezzatti GB, Conedera M, Lapierre J, Huntrieser H. 2023. On the role of continuing currents in lightning-induced fire ignition. Journal of Geophysical Research - Atmospheres 128: e2023JD038891. https://doi.org/10.1029/2023JD038891
Resumen : Lightning flashes are an important source of wildfires worldwide, contributing to the emission of trace gases to the atmosphere. Based on experiments and field observations, continuing currents in lightning have since a long time been proposed to play a significant role in the ignition of wildfires. However, simultaneous detections of optical and radio signals from fire-igniting lightning confirming the role of continuing currents in igniting wildfires are rare. In this work, we first analyze the optical signal of the lightning-ignited wildfires reported by the Geostationary Lightning Mapper over the Contiguous United States (CONUS) during the summer of 2018, and we then analyze the optical and the Extremely Low Frequency signal of a confirmed fire-igniting lightning flash in the Swiss Alps. Despite data uncertainties, we found that the probability of ignition of a lightning flash with Continuing Current (CC) lasting more than 10 ms is higher than that of cloud-to-ground lightning in CONUS. Finally, we confirm the existence of a long CC (lasting about 400 ms) associated with a long-lasting optical signal (lasting between 2 and 4 s) of a video-recorded fire-igniting lightning flash.
URI : https://ria.asturias.es/RIA/handle/123456789/14664
Aparece en las colecciones: Medio Ambiente

Mostrar el registro Completo

Ver estadísticas del documento

Todos los documentos en RIA están protegidos por derechos de autor.